A floating trestle with elastic sliders supporting overlapping springboards

Abstract

A floating trestle with an elastic slider supporting a lap springboard relates to the technical field of floating trestle suitable for vehicle traffic. It comprises a plurality of standard bridge sections interconnected along the length direction, a lap springboard is arranged between two adjacent standard bridge sections, a plurality of mooring piles are arranged on the decks of the standard bridge sections on both sides of the length direction of the lap springboard, steel cables are wound on the mooring piles, and a plurality of anti-collision pads are arranged at both ends of the length direction of each standard bridge section. A compressible elastic slider and a rigid pressure block are arranged at the bottom of the lap springboard of the present invention, wherein the elastic slider is in point contact with the floating body deck, and the rigid pressure block is in surface contact with the floating body deck. When no vehicle passes above the springboard, the point contact is sufficient to support the overall structure, and the springboard can slide freely on the bridge section deck; when a vehicle passes on the springboard, the elastic slider is compressed, and at this time the surface contact is the main force-bearing component, the surface contact has a greater friction force, is not easy to slide, and the force is more clear and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of a floating trestle suitable for vehicle passage, and in particular to a floating trestle structure connected by a lapped springboard supported by an elastic sliding block. Background Art

[0002] The floating bridge is composed of multiple bridge sections. It is widely used in military and civilian rescue due to its advantages of convenient transportation and fast erection and withdrawal. After the floating bridge is erected, a splicing plank needs to be set above the gap between each bridge section to ensure the normal passage of vehicles.

[0003] The bottom of the traditional lap springboard uses pressure blocks / plates as the main load-bearing components to ensure the strength and stability of the overall structure during use. However, when there is no load on the springboard and there is a large relative movement between adjacent buoys, the traditional pressure blocks / plates still maintain a large area of ​​contact with the buoy deck. At this time, the force on the springboard connection is always at a high level, which significantly reduces the service life of the springboard connection and increases the collision and friction between the springboard pressure-bearing parts and the buoy deck. Summary of the invention

[0004] The invention provides a floating trestle with an elastic sliding block supporting a lapped springboard, which solves the problems raised in the background technology.

[0005] A floating trestle with an elastic slider supporting a lap springboard comprises a plurality of standard bridge sections connected to each other along the length direction, a lap springboard is arranged between two adjacent standard bridge sections, a plurality of mooring piles are arranged on the decks of the standard bridge sections on both sides of the lap springboard in the length direction, steel cables are wound around the mooring piles, and a plurality of anti-collision pads are arranged at both ends of each standard bridge section in the length direction.

[0006] Preferably, the standard bridge section of the floating pier is a single floating body, or is composed of a plurality of floating bodies.

[0007] Preferably, the overlapping springboard of the present invention includes a springboard body arranged between two adjacent standard bridge sections, a front springboard and a rear springboard are respectively arranged at both ends of the springboard body in the length direction, the front springboard and the rear springboard are respectively connected to the springboard body through secondary connecting hinges, the springboard body close to the rear springboard is connected to the standard bridge section through a main connecting hinge, and an elastic supporting slider and a pressure block are sequentially arranged on the lower part of the springboard body close to the front springboard.

[0008] Preferably, there are a plurality of elastic supporting sliding blocks of the present invention, which are located in the width direction of the springboard body.

[0009] The lap springboard of the present invention is arranged at the bow of the standard bridge section, and a compressible elastic support slider and a rigid pressure block are arranged at the bottom of the springboard, wherein the elastic support slider is in point contact with the floating body deck, and the rigid pressure block is in surface contact with the floating body deck.

[0010] When there is no vehicle passing over the gangway, the point-contact elastic support slider is sufficient to support the overall structure. At this time, due to the compressible characteristics of the slider, when a large relative movement occurs between the floating bodies, the gangway can slide freely on the floating body deck and play a buffering role, thereby extending the service life of the entire gangway and the contact position of the floating body deck.

[0011] When the vehicle load acts on the springboard, the elastic supporting slider is compressed. At this time, the strip-shaped pressure block with surface contact serves as the main force-bearing component. Compared with point contact, surface contact has greater friction, is not easy to slide, and the force is more clear and reliable, so the vehicle driving on it has higher stability.

[0012] The present invention adopts the above technical solution and has the following advantages compared with the prior art:

[0013] 1. The bottom of the overlapping springboard is innovatively set as a combination structure of an elastic support slider and a strip pressure block. It mainly solves the problem of how to reduce damage and extend the service life when there is no vehicle passing above the springboard, that is, when the springboard is in "standby" working (in fact, the speed of vehicles on the floating trestle is relatively fast, and the time that vehicles stay on the springboard is generally short. The springboard is in "standby" state most of the time during use). The elastic support slider is in point contact with the floating body deck, and the contact area is relatively small, which is easy to slide. At the same time, its elastic support plays a good buffering role, avoiding direct collision between the springboard and the floating body.

[0014] 2. Compared with the traditional floating pier, the floating pier of the present invention uses elastic sliders to support the overlapping springboard. The stress state during use is determined by the vehicle load passing on it. In the case of no vehicle passing or a small vehicle load, the elastic support slider supports the entire structure. At this time, the stress on the springboard connection part and the floating body deck part is small. When a heavy vehicle passes on the springboard, the force system at the springboard position is transformed, the elastic support slider is compressed, and the strip-shaped pressure block with a large contact surface participates in the force. At this time, the friction force is large and it is not easy to slide, ensuring the rapidity and safety of vehicle passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall effect diagram of the floating trestle of the present invention;

[0016] Figure 2 This is an enlarged view of the gap position between two adjacent standard bridge sections of the present invention;

[0017] Figure 3 It is a schematic diagram of the floating trestle of the present invention in a recovered state;

[0018] Figure 4 It is a schematic diagram of the floating trestle of the present invention in the erection state;

[0019] Figure 5 This is a schematic diagram of the elastic support slab of the present invention (without vehicles passing);

[0020] Figure 6 This is a schematic diagram of the elastic supporting slat of the present invention (with vehicles passing through). DETAILED DESCRIPTION

[0021] The technical solution of the present invention is described in detail below with reference to the accompanying drawings:

[0022] like Figure 1-Figure 6 As shown, a floating trestle with an elastic slider supporting a lap springboard comprises a plurality of standard bridge sections 1 interconnected along the length direction, a lap springboard 3 is arranged between two adjacent standard bridge sections 1 and 2, a plurality of mooring piles 4 are arranged on the decks of the standard bridge sections 1 located on both sides of the lap springboard 3 in the length direction, steel cables 5 are wound around the mooring piles 4, and a plurality of anti-collision pads 6 are arranged at both ends of each standard bridge section 1 in the length direction.

[0023] like Figure 1-Figure 6 As shown, the lap springboard 3 of the present invention includes a springboard body 7 arranged between two adjacent standard bridge sections 1 and 2, and a front springboard 8 and a rear springboard 9 are arranged at both ends of the springboard body 7 in the length direction. The front springboard 8 and the rear springboard 9 are respectively connected to the springboard body 7 through secondary connecting hinges 11, and the springboard body 7 close to the rear springboard 9 is connected to the standard bridge section 1 through a main connecting hinge 10. An elastic supporting slider 12 and a pressure block 13 are sequentially arranged at the lower part of the springboard body 7 close to the front springboard 8.

[0024] like Figure 3 , Figure 5 As shown, there are a plurality of elastic support sliders 12 of the present invention, which are located in the width direction of the springboard body 7.

[0025] The present invention relates to a floating trestle with an elastic slider supporting a lapped springboard, the overall effect of which is as follows: Figure 1 As shown, Figure 2 This is an enlarged view of the position of the gangway. A lap gangway 3 is provided at the bow of each standard bridge section 1. An elastic support slider 12 and a strip pressure block 13 are provided at the bottom of the lap gangway 3. When the floating pier is not loaded, the elastic support slider 12 mainly participates in the force. Its contact area is small and the contact with the deck of the standard bridge section 2 is flexible, which effectively prolongs the service life of the deck of the standard bridge section 2 and the main connection hinge 10.

[0026] When the floating trestle with elastic sliders supporting the lapped springboard of the present invention is used, the standard bridge section 1 is moved to the position to be connected, such as Figure 3As shown, the lap springboard 3 is inverted on the deck of the standard bridge section 1, and then the high-strength steel cable 5 is inserted into the mooring piles 4 of the adjacent standard bridge sections 1 and 2 for fixing. Figure 4 and Figure 5 As shown, the main body of the springboard 7 rotates with the main connection hinge 10 and is overlapped to the deck position of the adjacent standard bridge section 2. At this time, the elastic support slider 12 bears the weight of the entire springboard, and the strip pressure block 13 does not participate in the work. After the main body of the springboard 7 is laid out, the front springboard 8 and the rear springboard 9 are rotated through the secondary connection hinge 11 and are respectively laid on the deck positions of the corresponding standard bridge sections 1 and 2.

[0027] like Figure 6 As shown, when a vehicle passes over the springboard body 7, the elastic supporting slider 12 is compressed, and the strip-shaped pressure-bearing block 13 mainly participates in the force. At this time, the contact area between the springboard body 7 and the deck is large, it is not easy to slide and the force transmission is reliable, ensuring the safety of vehicle passage.

[0028] The floating trestle with elastic slider supporting the overlapping springboard is composed of a standard bridge section 1, an overlapping springboard 3 supported by an elastic slider, a mooring pile 4, a high-strength steel cable 5 and an anti-collision pad 6. The overlapping springboard 3 is composed of a springboard body 7, a front attached springboard 8, a rear attached springboard 9, an elastic supporting slider 12 and a strip pressure block 13. The springboard body 7 is connected to the standard bridge section 1 through a main connecting hinge 10, and the front attached springboard 8 and the rear attached springboard 9 are both connected to the springboard body 7 through a secondary connecting hinge 11. The erection and withdrawal process of the entire springboard is controlled by the rotation of the main connecting hinge 10 and the secondary connecting hinge 11.

[0029] The mooring piles 4 are fixed above the decks at the bow and stern of the standard bridge section 1, and the connection of each standard bridge section 1 is achieved by tying the high-strength steel cable 5 to the mooring piles 4 on the adjacent bridge section. The anti-collision pad 6 is a rubber buffer material, fixed at the end plate position of the bow and stern of the standard bridge section 1.

[0030] After the standard bridge sections 1 and 2 of the floating trestle are connected by the high-strength steel cable 5, the overlapping springboard 3 supported by the elastic slider is erected to the deck of the adjacent standard bridge section 2. At this time, the weight of the overlapping springboard 3 is borne by the elastic support slider 12 at its lower part, while the strip pressure block 13 is not subjected to force. Since the contact area of ​​the elastic support slider 12 is small, it is easy to slide, thus avoiding damage to the contact deck caused by the relative movement between the standard bridge sections 1 and 2 and excessive force on the main connecting hinge 10. When a vehicle passes on the springboard body 7, the elastic support slider 12 is compressed, and the strip pressure block 13 bears the overall weight. Since the strip pressure block 13 has a large contact area and is not easy to slide, the stability of the vehicle driving is guaranteed.

[0031] The lap springboard of the present invention is arranged at the bow of the standard bridge section 1, and a compressible elastic support slider 12 and a rigid pressure block 13 are arranged in sequence at the bottom of the springboard body 7, wherein the elastic support slider 12 is in point contact with the deck of the standard bridge section 2, and the rigid pressure block 13 is in surface contact with the deck of the standard bridge section 2.

[0032] When there is no vehicle passing above the gangway body 7, the point-contact elastic support slider 12 is sufficient to support the overall structure. At this time, due to the compressible characteristics of the elastic support slider 12, when a large relative movement occurs between the standard bridge sections 1 and 2, the gangway body 7 can slide freely on the deck of the standard bridge section 2, and at the same time play a buffering role, thereby extending the service life of the entire overlapping gangway 3 and the contact position of the deck of the standard bridge section 2.

[0033] When the vehicle load acts on the springboard body 7, the elastic supporting slider 12 is compressed. At this time, the surface contact strip pressure block 13 serves as the main force-bearing component. Compared with point contact, surface contact has greater friction, is not easy to slide, and the force is more clear and reliable, so the stability of the vehicle driving on it is higher.

Claims

1. A floating trestle with elastic sliders supporting overlapping springboards, characterized in that The invention comprises a plurality of standard bridge sections (1) connected to each other along the length direction, a lap springboard (3) is arranged between two adjacent standard bridge sections (1), a plurality of mooring piles (4) are arranged on the deck of the standard bridge section (1) located on both sides of the lap springboard (3) in the length direction, a steel cable (5) is wound around the mooring piles (4), and a plurality of anti-collision pads (6) are arranged at both ends of the length direction of each standard bridge section (1); the lap springboard (3) comprises a springboard body (7) arranged between two adjacent standard bridge sections (1), a front springboard (8) and a rear springboard (9) are arranged at both ends of the springboard body (7) in the length direction, the front springboard (8) and the rear springboard (9) are respectively connected to the springboard body (7) through secondary connecting hinges (11), the springboard body (7) close to the rear springboard (9) is connected to the standard bridge section (1) through a main connecting hinge (10), and an elastic support slider (12) and a pressure block (13) are arranged in sequence at the lower part of the springboard body (7) close to the front springboard (8); After two adjacent standard bridge sections are connected by the steel cable (5), the overlapping springboard (3) supported by the elastic slider is erected to the deck of the adjacent standard bridge section. At this time, the weight of the overlapping springboard (3) is borne by the elastic support slider (12) at the bottom, while the strip pressure block (13) is not subjected to force. Since the contact area of ​​the elastic support slider (12) is small, it is easy to slide, thereby avoiding damage to the contact deck and excessive force on the main connection hinge (10) caused by the relative movement between the two adjacent standard bridge sections. When a vehicle passes on the springboard body (7), the elastic support slider (12) is compressed, and the strip pressure block (13) bears the entire weight. Since the contact area of ​​the strip pressure block (13) is large, it is not easy to slide, and the stability of vehicle driving is guaranteed.

2. The floating pier with elastic sliders supporting the lapped springboard according to claim 1, characterized in that The standard bridge section (1) is a single floating body, or is composed of a plurality of floating bodies.

3. The floating pier with elastic sliders supporting the lapped springboard according to claim 2, characterized in that There are a plurality of elastic support sliders (12) located in the width direction of the springboard body (7).

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